A presentation given at Samvera Connect 2020 On-line described thus, using a recent major batch update feature as a case study. We’ll explore how our approach allowed us to stay connected to our users and helped keep our development team in sync. Finally, we’ll reflect on what we’ve found most successful in this approach as well as stumbling blocks we encountered along the way. The 'Related URL' below links to beginning of this presentation in the day's YouTube recording., and Over the past year, NUL dev team has implemented and refined a workflow for modular development of repository applications. It starts with addressing a specific user need or problem. Using design-thinking techniques, we next generate visual solutions through rudimentary wire framing, white boarding sessions and architecture discussions. We then move to API design and mocking before starting development with two teams working independently, from the API, outwards. This presentation will demonstrate the iterative approach in action